The Chicago Cubs have added Matthew Boyd to their rotation in their first big offseason move, agreeing to a two-year, $29 million contract with the veteran left-hander, according to a person familiar with the negotiations.

Wrigley Field has been a good home for left-handed pitchers in recent years. The Cubs are adding another one, signing free agent Matthew Boyd to a two-year deal.

Boyd is more of an upside play for the Cubs than a guarantee of quality innings. When he’s healthy and on the mound, he's been effective.